robustify config for framebuffer etc.

panda/src/display/config_display.cxx

@@ -119,6 +119,14 @@ ConfigVariableBool window_inverted
           "they will render upside-down and backwards.  Normally this is useful only "
           "for debugging."));
 
+ConfigVariableBool depth_offset_decals
+("depth-offset-decals", false,
+ PRC_DESC("Set this true to allow decals to be implemented via the advanced "
+          "depth offset feature, if supported, instead of via the traditional "
+          "(and slower) two-pass approach.  This is false by default "
+          "because it appears that many graphics drivers have issues with "
+          "their depth offset implementation."));
+
 ConfigVariableInt win_size
 ("win-size", "640 480",
  PRC_DESC("This is the default size at which to open a new window.  This "
@@ -162,6 +170,31 @@ ConfigVariableEnum<WindowProperties::ZOrder> z_order
 ConfigVariableString window_title
 ("window-title", "Panda");
 
+ConfigVariableString framebuffer_mode
+("framebuffer-mode", "rgba double-buffer depth multisample hardware",
+ PRC_DESC("A space-separated list of keywords that describe the default "
+          "framebuffer properties requested for a window."));
+ConfigVariableInt depth_bits
+("depth-bits", 1,
+ PRC_DESC("The minimum number of depth bits requested if the depth keyword "
+          "is present in framebuffer-mode."));
+ConfigVariableInt color_bits
+("color-bits", 1,
+ PRC_DESC("The minimum number of color bits requested in the default "
+          "framebuffer properties (sum of all three color channels)."));
+ConfigVariableInt alpha_bits
+("alpha-bits", 1,
+ PRC_DESC("The minimum number of alpha bits requested if the alpha or rgba "
+          "keyword is present in framebuffer-mode."));
+ConfigVariableInt stencil_bits
+("stencil-bits", 1,
+ PRC_DESC("The minimum number of stencil bits requested if the stencil keyword "
+          "is present in framebuffer-mode."));
+ConfigVariableInt multisample_bits
+("multisample-bits", 1,
+ PRC_DESC("The minimum number of multisample bits requested if the multisample keyword "
+          "is present in framebuffer-mode."));
+
 ConfigVariableDouble background_color
 ("background-color", "0.41 0.41 0.41",
  PRC_DESC("Specifies the rgb(a) value of the default background color for a "

panda/src/display/config_display.h

@@ -53,6 +53,7 @@ extern ConfigVariableBool prefer_single_buffer;
 
 extern ConfigVariableBool copy_texture_inverted;
 extern ConfigVariableBool window_inverted;
+extern ConfigVariableBool depth_offset_decals;
 
 extern ConfigVariableInt win_size;
 extern ConfigVariableInt win_origin;
@@ -68,6 +69,13 @@ extern ConfigVariableFilename cursor_filename;
 extern ConfigVariableEnum<WindowProperties::ZOrder> z_order;
 extern ConfigVariableString window_title;
 
+extern ConfigVariableString framebuffer_mode;
+extern ConfigVariableInt depth_bits;
+extern ConfigVariableInt color_bits;
+extern ConfigVariableInt alpha_bits;
+extern ConfigVariableInt stencil_bits;
+extern ConfigVariableInt multisample_bits;
+
 extern ConfigVariableDouble background_color;
 
 

panda/src/display/displayRegion.cxx

@@ -38,6 +38,7 @@ DisplayRegion(GraphicsOutput *window) :
   _active(true),
   _sort(0)
 {
+  _draw_buffer_type = window->get_draw_buffer_type();
   compute_pixels();
 }
 
@@ -55,6 +56,7 @@ DisplayRegion(GraphicsOutput *window, const float l,
   _active(true),
   _sort(0)
 {
+  _draw_buffer_type = window->get_draw_buffer_type();
   compute_pixels();
 }
 

panda/src/display/frameBufferProperties.I

@@ -164,7 +164,7 @@ has_depth_bits() const {
 INLINE void FrameBufferProperties::
 clear_depth_bits() {
   _specified &= ~S_depth_bits;
-  _depth_bits = 0;
+  _depth_bits = 1;
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -212,7 +212,145 @@ has_color_bits() const {
 INLINE void FrameBufferProperties::
 clear_color_bits() {
   _specified &= ~S_color_bits;
-  _color_bits = 0;
+  _color_bits = 1;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_alpha_bits
+//       Access: Published
+//  Description: Specifies the minimum number of bits that are
+//               required of the alpha buffer.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_alpha_bits(int alpha_bits) {
+  _alpha_bits = alpha_bits;
+  _specified |= S_alpha_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_alpha_bits
+//       Access: Published
+//  Description: Returns the number of bits specified for the alpha
+//               buffer.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_alpha_bits() const {
+  return _alpha_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_alpha_bits
+//       Access: Published
+//  Description: Returns true if the number of bits for the alpha
+//               buffer has been specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_alpha_bits() const {
+  return ((_specified & S_alpha_bits) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_alpha_bits
+//       Access: Published
+//  Description: Removes the alpha_bits specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_alpha_bits() {
+  _specified &= ~S_alpha_bits;
+  _alpha_bits = 1;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_stencil_bits
+//       Access: Published
+//  Description: Specifies the minimum number of bits that are
+//               required for the stencil buffer.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_stencil_bits(int stencil_bits) {
+  _stencil_bits = stencil_bits;
+  _specified |= S_stencil_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_stencil_bits
+//       Access: Published
+//  Description: Returns the number of bits specified for the stencil
+//               buffer.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_stencil_bits() const {
+  return _stencil_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_stencil_bits
+//       Access: Published
+//  Description: Returns true if the number of bits for the stencil
+//               buffer has been specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_stencil_bits() const {
+  return ((_specified & S_stencil_bits) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_stencil_bits
+//       Access: Published
+//  Description: Removes the stencil_bits specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_stencil_bits() {
+  _specified &= ~S_stencil_bits;
+  _stencil_bits = 1;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_multisample_bits
+//       Access: Published
+//  Description: Specifies the minimum number of bits that are
+//               required for the multisample buffer.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_multisample_bits(int multisample_bits) {
+  _multisample_bits = multisample_bits;
+  _specified |= S_multisample_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_multisample_bits
+//       Access: Published
+//  Description: Returns the number of bits specified for the multisample
+//               buffer.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_multisample_bits() const {
+  return _multisample_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_multisample_bits
+//       Access: Published
+//  Description: Returns true if the number of bits for the multisample
+//               buffer has been specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_multisample_bits() const {
+  return ((_specified & S_multisample_bits) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_multisample_bits
+//       Access: Published
+//  Description: Removes the multisample_bits specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_multisample_bits() {
+  _specified &= ~S_multisample_bits;
+  _multisample_bits = 1;
 }
 
 INLINE ostream &

panda/src/display/frameBufferProperties.cxx

@@ -17,6 +17,7 @@
 ////////////////////////////////////////////////////////////////////
 
 #include "frameBufferProperties.h"
+#include "string_utils.h"
 
 
 ////////////////////////////////////////////////////////////////////
@@ -41,6 +42,85 @@ operator = (const FrameBufferProperties &copy) {
   _frame_buffer_mode = copy._frame_buffer_mode;
   _depth_bits = copy._depth_bits;
   _color_bits = copy._color_bits;
+  _alpha_bits = copy._alpha_bits;
+  _stencil_bits = copy._stencil_bits;
+  _multisample_bits = copy._multisample_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_default
+//       Access: Published, Static
+//  Description: Returns a FrameBufferProperties structure with all of
+//               the default values filled in according to the user's
+//               config file.
+////////////////////////////////////////////////////////////////////
+FrameBufferProperties FrameBufferProperties::
+get_default() {
+  FrameBufferProperties props;
+
+  int mode = 0;
+  int num_words = framebuffer_mode.get_num_words();
+  for (int i = 0; i < num_words; i++) {
+    string word = framebuffer_mode.get_word(i);
+    if (cmp_nocase_uh(word, "rgb") == 0) {
+      mode |= FM_rgb;
+
+    } else if (cmp_nocase_uh(word, "index") == 0) {
+      mode |= FM_index;
+
+    } else if (cmp_nocase_uh(word, "single") == 0 ||
+               cmp_nocase_uh(word, "single-buffer") == 0) {
+      mode |= FM_single_buffer;
+
+    } else if (cmp_nocase_uh(word, "double") == 0 ||
+               cmp_nocase_uh(word, "double-buffer") == 0) {
+      mode |= FM_double_buffer;
+
+    } else if (cmp_nocase_uh(word, "triple") == 0 ||
+               cmp_nocase_uh(word, "triple-buffer") == 0) {
+      mode |= FM_triple_buffer;
+
+    } else if (cmp_nocase_uh(word, "accum") == 0) {
+      mode |= FM_accum;
+
+    } else if (cmp_nocase_uh(word, "alpha") == 0) {
+      mode |= FM_alpha;
+
+    } else if (cmp_nocase_uh(word, "rgba") == 0) {
+      mode |= FM_rgba;
+
+    } else if (cmp_nocase_uh(word, "depth") == 0) {
+      mode |= FM_depth;
+
+    } else if (cmp_nocase_uh(word, "stencil") == 0) {
+      mode |= FM_stencil;
+
+    } else if (cmp_nocase_uh(word, "multisample") == 0) {
+      mode |= FM_multisample;
+
+    } else if (cmp_nocase_uh(word, "stereo") == 0) {
+      mode |= FM_stereo;
+
+    } else if (cmp_nocase_uh(word, "software") == 0) {
+      mode |= FM_software;
+
+    } else if (cmp_nocase_uh(word, "hardware") == 0) {
+      mode |= FM_hardware;
+
+    } else {
+      display_cat.warning()
+        << "Unknown framebuffer keyword: " << word << "\n";
+    }
+  }
+
+  props.set_frame_buffer_mode(mode);
+  props.set_depth_bits(depth_bits);
+  props.set_color_bits(color_bits);
+  props.set_alpha_bits(alpha_bits);
+  props.set_stencil_bits(stencil_bits);
+  props.set_multisample_bits(multisample_bits);
+
+  return props;
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -54,7 +134,10 @@ operator == (const FrameBufferProperties &other) const {
           _flags == other._flags &&
           _frame_buffer_mode == other._frame_buffer_mode &&
           _depth_bits == other._depth_bits &&
-          _color_bits == other._color_bits);
+          _color_bits == other._color_bits &&
+          _alpha_bits == other._alpha_bits &&
+          _stencil_bits == other._stencil_bits &&
+          _multisample_bits == other._multisample_bits);
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -69,8 +152,11 @@ clear() {
   _specified = 0;
   _flags = 0;
   _frame_buffer_mode = 0;
-  _depth_bits = 0;
-  _color_bits = 0;
+  _depth_bits = 1;
+  _color_bits = 1;
+  _alpha_bits = 1;
+  _stencil_bits = 1;
+  _multisample_bits = 1;
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -91,6 +177,15 @@ add_properties(const FrameBufferProperties &other) {
   if (other.has_color_bits()) {
     set_color_bits(other.get_color_bits());
   }
+  if (other.has_alpha_bits()) {
+    set_alpha_bits(other.get_alpha_bits());
+  }
+  if (other.has_stencil_bits()) {
+    set_stencil_bits(other.get_stencil_bits());
+  }
+  if (other.has_multisample_bits()) {
+    set_multisample_bits(other.get_multisample_bits());
+  }
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -137,8 +232,11 @@ output(ostream &out) const {
     if ((frameBuffer_mode & FM_stereo) != 0) {
       out << "|FM_stereo";
     }
-    if ((frameBuffer_mode & FM_luminance) != 0) {
-      out << "|FM_luminance";
+    if ((frameBuffer_mode & FM_software) != 0) {
+      out << "|FM_software";
+    }
+    if ((frameBuffer_mode & FM_hardware) != 0) {
+      out << "|FM_hardware";
     }
     out << " ";
   }
@@ -148,4 +246,13 @@ output(ostream &out) const {
   if (has_color_bits()) {
     out << "color_bits=" << get_color_bits() << " ";
   }
+  if (has_alpha_bits()) {
+    out << "alpha_bits=" << get_alpha_bits() << " ";
+  }
+  if (has_stencil_bits()) {
+    out << "stencil_bits=" << get_stencil_bits() << " ";
+  }
+  if (has_multisample_bits()) {
+    out << "multisample_bits=" << get_multisample_bits() << " ";
+  }
 }

panda/src/display/frameBufferProperties.h

@@ -34,24 +34,27 @@ PUBLISHED:
   void operator = (const FrameBufferProperties &copy);
   INLINE ~FrameBufferProperties();
 
+  static FrameBufferProperties get_default();
+
   bool operator == (const FrameBufferProperties &other) const;
   INLINE bool operator != (const FrameBufferProperties &other) const;
 
   enum FrameBufferMode {
-    FM_rgb =           0x0000,
-    FM_index =         0x0001,
-    FM_single_buffer = 0x0000,
-    FM_double_buffer = 0x0002,
-    FM_triple_buffer = 0x0004,
-    FM_buffer        = 0x0006,  // == (FM_single_buffer | FM_double_buffer | FM_triple_buffer)
-    FM_accum =         0x0008,
-    FM_alpha =         0x0010,
-    FM_rgba =          0x0010,  // == (FM_rgb | FM_alpha)
-    FM_depth =         0x0020,
-    FM_stencil =       0x0040,
-    FM_multisample =   0x0080,
-    FM_stereo =        0x0100,
-    FM_luminance =     0x0200,
+    FM_rgb            = 0x0000,
+    FM_index          = 0x0001,
+    FM_single_buffer  = 0x0000,
+    FM_double_buffer  = 0x0002,
+    FM_triple_buffer  = 0x0004,
+    FM_buffer         = 0x0006,  // == (FM_single_buffer | FM_double_buffer | FM_triple_buffer)
+    FM_accum          = 0x0008,
+    FM_alpha          = 0x0010,
+    FM_rgba           = 0x0010,  // == (FM_rgb | FM_alpha)
+    FM_depth          = 0x0020,
+    FM_stencil        = 0x0040,
+    FM_multisample    = 0x0080,
+    FM_stereo         = 0x0100,
+    FM_software       = 0x0200,
+    FM_hardware       = 0x0400,
   };
 
   void clear();
@@ -74,6 +77,21 @@ PUBLISHED:
   INLINE bool has_color_bits() const;
   INLINE void clear_color_bits();
 
+  INLINE void set_alpha_bits(int alpha_bits);
+  INLINE int get_alpha_bits() const;
+  INLINE bool has_alpha_bits() const;
+  INLINE void clear_alpha_bits();
+
+  INLINE void set_stencil_bits(int stencil_bits);
+  INLINE int get_stencil_bits() const;
+  INLINE bool has_stencil_bits() const;
+  INLINE void clear_stencil_bits();
+
+  INLINE void set_multisample_bits(int multisample_bits);
+  INLINE int get_multisample_bits() const;
+  INLINE bool has_multisample_bits() const;
+  INLINE void clear_multisample_bits();
+
   void add_properties(const FrameBufferProperties &other);
 
   void output(ostream &out) const;
@@ -83,24 +101,22 @@ private:
   // structure have been filled in by the user, and which remain
   // unspecified.
   enum Specified {
-    S_frame_buffer_mode = 0x0200,
-    S_depth_bits        = 0x0400,
-    S_color_bits        = 0x0800,
-  };
-
-  // This bitmask represents the true/false settings for various
-  // boolean flags (assuming the corresponding S_* bit has been set,
-  // above).
-  /*
-  enum Flags {
+    S_frame_buffer_mode = 0x0001,
+    S_depth_bits        = 0x0002,
+    S_color_bits        = 0x0004,
+    S_alpha_bits        = 0x0008,
+    S_stencil_bits      = 0x0010,
+    S_multisample_bits  = 0x0020,
   };
-  */
 
   int _specified;
   int _flags;
   int _frame_buffer_mode;
   int _depth_bits;
   int _color_bits;
+  int _alpha_bits;
+  int _stencil_bits;
+  int _multisample_bits;
 };
 
 INLINE ostream &operator << (ostream &out, const FrameBufferProperties &properties);

panda/src/display/graphicsEngine.cxx

@@ -73,13 +73,7 @@ GraphicsEngine(Pipeline *pipeline) :
   _windows_sorted = true;
 
   // Default frame buffer properties.
-  _frame_buffer_properties.set_depth_bits(1);
-  _frame_buffer_properties.set_color_bits(1);
-  _frame_buffer_properties.set_frame_buffer_mode
-    (FrameBufferProperties::FM_rgba | 
-     FrameBufferProperties::FM_double_buffer | 
-     FrameBufferProperties::FM_multisample | 
-     FrameBufferProperties::FM_depth);
+  _frame_buffer_properties = FrameBufferProperties::get_default();
 
   set_threading_model(GraphicsThreadingModel(threading_model));
   if (!_threading_model.is_default()) {
@@ -1084,7 +1078,7 @@ do_cull(CullHandler *cull_handler, SceneSetup *scene_setup,
 
   CullTraverser trav;
   trav.set_cull_handler(cull_handler);
-  trav.set_depth_offset_decals(gsg->depth_offset_decals());
+  trav.set_depth_offset_decals(depth_offset_decals && gsg->depth_offset_decals());
   trav.set_scene(scene_setup);
   
   if (view_frustum_cull) {

panda/src/display/graphicsStateGuardian.cxx

@@ -486,7 +486,7 @@ wants_colors() const {
 ////////////////////////////////////////////////////////////////////
 bool GraphicsStateGuardian::
 depth_offset_decals() {
-  return false;
+  return true;
 }
 
 ////////////////////////////////////////////////////////////////////

panda/src/dxgsg7/config_dxgsg7.cxx

@@ -59,11 +59,6 @@ ConfigVariableBool dx_no_vertex_fog
 ConfigVariableBool dx_auto_normalize_lighting
 ("auto-normalize-lighting", true);
 
-ConfigVariableBool dx_allow_software_renderer
-("dx-allow-software-renderer", false);
-ConfigVariableBool dx_force_software_renderer
-("dx-force-software-renderer", false);
-
 #ifndef NDEBUG
 // debugging flag
 // values are same as D3DCULL enumtype, 0 - no force, 1 - force none, 2 - force CW, 3 - force CCW
@@ -96,12 +91,6 @@ ConfigVariableBool dx_do_vidmemsize_check
 ConfigVariableBool dx_preserve_fpu_state
 ("dx-preserve-fpu-state", true);
 
-// Configure this true to try to implement decals using a
-// DepthOffsetAttrib, false to do them with the more reliable 3-pass
-// rendering method instead.
-ConfigVariableBool dx_depth_offset_decals
-("depth-offset-decals", false);
-
 #ifdef _DEBUG
 ConfigVariableDouble dx_global_miplevel_bias
 ("dx-global-miplevel-bias", 0.0);

panda/src/dxgsg7/config_dxgsg7.h

@@ -34,8 +34,6 @@ extern ConfigVariableBool dx_no_vertex_fog;
 extern ConfigVariableBool dx_full_screen_antialiasing;
 extern ConfigVariableBool dx_auto_normalize_lighting;
 extern ConfigVariableBool dx_use_rangebased_fog;
-extern ConfigVariableBool dx_allow_software_renderer;
-extern ConfigVariableBool dx_force_software_renderer;
 extern ConfigVariableBool link_tristrips;
 
 // debug flags we might want to use in full optimized build
@@ -47,8 +45,6 @@ extern ConfigVariableBool dx_force_16bpp_zbuffer;
 extern ConfigVariableBool dx_do_vidmemsize_check;
 extern ConfigVariableBool dx_preserve_fpu_state;
 
-extern ConfigVariableBool dx_depth_offset_decals;
-
 #ifndef NDEBUG
 extern ConfigVariableInt dx_force_backface_culling;
 #endif

panda/src/dxgsg7/dxGraphicsStateGuardian7.cxx

@@ -4267,20 +4267,6 @@ wants_texcoords() const {
     return _texturing_enabled;
 }
 
-
-////////////////////////////////////////////////////////////////////
-//     Function: DXGraphicsStateGuardian7::depth_offset_decals
-//       Access: Public, Virtual
-//  Description: Returns true if this GSG can implement decals using a
-//               DepthOffsetAttrib, or false if that is unreliable
-//               and the three-step rendering process should be used
-//               instead.
-////////////////////////////////////////////////////////////////////
-bool DXGraphicsStateGuardian7::
-depth_offset_decals() {
-  return dx_depth_offset_decals;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: DXGraphicsStateGuardian7::compute_distance_to
 //       Access: Public, Virtual

panda/src/dxgsg7/dxGraphicsStateGuardian7.h

@@ -131,8 +131,6 @@ public:
 
   virtual bool wants_texcoords(void) const;
 
-  virtual bool depth_offset_decals();
-
   INLINE float compute_distance_to(const LPoint3f &point) const;
   virtual void set_color_clear_value(const Colorf& value);
 

panda/src/dxgsg7/wdxGraphicsWindow7.cxx

@@ -1013,8 +1013,22 @@ choose_device(int devnum, DXDeviceInfo *pDevinfo) {
   wdxGraphicsPipe7 *dxpipe;
   DCAST_INTO_R(dxpipe, _pipe, false);
 
-  DWORD dwRenderWidth = get_properties().get_x_size();
-  DWORD dwRenderHeight = get_properties().get_y_size();
+  WindowProperties properties = get_properties();
+  FrameBufferProperties fbprops = _dxgsg->get_properties();
+
+  int mode = fbprops.get_frame_buffer_mode();
+  bool hardware = ((mode & FrameBufferProperties::FM_hardware) != 0);
+  bool software = ((mode & FrameBufferProperties::FM_software) != 0);
+
+  // If the user specified neither hardware nor software frame buffer,
+  // he gets either one.
+  if (!hardware && !software) {
+    hardware = true;
+    software = true;
+  }
+
+  DWORD dwRenderWidth = properties.get_x_size();
+  DWORD dwRenderHeight = properties.get_y_size();
   LPDIRECTDRAW7 pDD=NULL;
   HRESULT hr;
 
@@ -1111,22 +1125,18 @@ choose_device(int devnum, DXDeviceInfo *pDevinfo) {
   WORD DeviceIdx;
 
   // select TNL if present
-  if (d3ddevs[TNLHALIDX].dwDevCaps & D3DDEVCAPS_HWRASTERIZATION) {
+  if (hardware && (d3ddevs[TNLHALIDX].dwDevCaps & D3DDEVCAPS_HWRASTERIZATION)) {
     DeviceIdx = TNLHALIDX;
-  } else if (d3ddevs[REGHALIDX].dwDevCaps & D3DDEVCAPS_HWRASTERIZATION) {
+  } else if (hardware && (d3ddevs[REGHALIDX].dwDevCaps & D3DDEVCAPS_HWRASTERIZATION)) {
     DeviceIdx = REGHALIDX;
-  } else if (dx_allow_software_renderer || dx_force_software_renderer) {
+  } else if (software) {
     DeviceIdx = SWRASTIDX;      
   } else {
     wdxdisplay7_cat.error()
-      << "No 3D HW present on device #" << devnum << ", skipping it... ("
+      << "No 3D graphics present on device #" << devnum << ", skipping it... ("
       << _wcontext.DXDeviceID.szDescription<<")\n";
     goto error_exit;
   }
-
-  if (dx_force_software_renderer) {
-    DeviceIdx = SWRASTIDX; 
-  }
     
   memcpy(&_wcontext.D3DDevDesc, &d3ddevs[DeviceIdx], 
          sizeof(D3DDEVICEDESC7));

panda/src/dxgsg8/config_dxgsg8.cxx

@@ -37,11 +37,6 @@ NotifyCategoryDef(wdxdisplay8, "windisplay");
 ConfigVariableBool dx_show_transforms
 ("dx-show-transforms", false);
 
-//  Configure this to TRUE if you want DirectX to control the entire screen,
-//  If false, it will just blit into a window.
-ConfigVariableBool dx_full_screen
-("dx-full-screen", false);
-
 //  Configure this true to force the rendering to sync to the video
 //  refresh, or false to let your frame rate go as high as it can,
 //  irrespective of the video refresh.
@@ -52,12 +47,6 @@ ConfigVariableBool dx_sync_video
 ConfigVariableInt dx_multisample_antialiasing_level
 ("dx-multisample-antialiasing-level", 0);
 
-// Configure this true to perform a cull traversal over the geometry
-// by default, false otherwise.  The cull traversal provides support
-// for state-sorting, z-sorting, and binning.
-ConfigVariableBool dx_cull_traversal
-("dx-cull-traversal", true);
-
 // if true, if card only supports per-vertex fog, it will be treated as no-HW fog capability
 ConfigVariableBool dx_no_vertex_fog
 ("dx-no-vertex-fog", false);

panda/src/dxgsg8/config_dxgsg8.h

@@ -29,9 +29,7 @@
 NotifyCategoryDecl(dxgsg8, EXPCL_PANDADX, EXPTP_PANDADX);
 NotifyCategoryDecl(wdxdisplay8, EXPCL_PANDADX, EXPTP_PANDADX);
 
-extern ConfigVariableBool dx_full_screen;
 extern ConfigVariableBool dx_sync_video;
-extern ConfigVariableBool dx_cull_traversal;
 extern ConfigVariableBool dx_no_vertex_fog;
 extern ConfigVariableBool dx_show_cursor_watermark;
 extern ConfigVariableBool dx_full_screen_antialiasing;

panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx

@@ -74,10 +74,6 @@
 // for sprites, 1000 prims, 6 verts/prim, 24 bytes/vert
 const int VERT_BUFFER_SIZE = (32*6*1024L);
 
-// if defined, pandadx only handles 1 panda display region
-// note multiple region code doesnt work now (see prepare_display_region,set_clipper)
-#define NO_MULTIPLE_DISPLAY_REGIONS
-
 TypeHandle DXGraphicsStateGuardian8::_type_handle;
 
 // bit masks used for drawing primitives
@@ -576,34 +572,6 @@ dx_init(void) {
 void DXGraphicsStateGuardian8::
 support_overlay_window(bool flag) {
   // How is this supposed to be done in DX8?
-  //_bDXisReady = !flag;
-  //dxgsg8_cat.debug() << "Set DxReady to " << _bDXisReady << "\n";
-  /*
-  if (_overlay_windows_supported && !flag) {
-    // Disable support for overlay windows.
-    _overlay_windows_supported = false;
-
-    if (dx_full_screen) {
-      _pScrn->pddsPrimary->SetClipper(NULL);
-    }
-
-  } else if (!_overlay_windows_supported && flag) {
-    // Enable support for overlay windows.
-    _overlay_windows_supported = true;
-
-    if (dx_full_screen) {
-      // Create a Clipper object to blt the whole screen.
-      LPDIRECTDRAWCLIPPER Clipper;
-
-      if (_pScrn->pDD->CreateClipper(0, &Clipper, NULL) == DD_OK) {
-        Clipper->SetHWnd(0, _pScrn->hWnd);
-        _pScrn->pddsPrimary->SetClipper(Clipper);
-      }
-      _pScrn->pDD->FlipToGDISurface();
-      Clipper->Release();
-    }
-  }
-  */
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -755,54 +723,6 @@ prepare_lens() {
   return SUCCEEDED(hr);
 }
 
-#ifndef NO_MULTIPLE_DISPLAY_REGIONS
-////////////////////////////////////////////////////////////////////
-//     Function: set_clipper
-//       Access:
-//  Description: Useless in DX at the present time
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian8::set_clipper(RECT cliprect) {
-
-    LPDIRECTDRAWCLIPPER Clipper;
-    HRESULT result;
-
-    // For windowed mode, the clip region is associated with the window,
-    // and DirectX does not allow you to create clip regions.
-    if (dx_full_screen) return;
-
-    /* The cliprect we receive is normalized so that (0,0) means the upper left of
-       the client portion of the window.
-        At least, I think that's true, and the following code assumes that.
-        So we must adjust the clip region by offsetting it to the origin of the
-        view rectangle.
-    */
-    clip_rect = cliprect;       // store the normalized clip rect
-    cliprect.left += _view_rect.left;
-    cliprect.right += _view_rect.left;
-    cliprect.top += _view_rect.top;
-    cliprect.bottom += _view_rect.top;
-    RGNDATA *rgn_data = (RGNDATA *)malloc(sizeof(RGNDATAHEADER) + sizeof(RECT));
-    HRGN hrgn = CreateRectRgn(cliprect.left, cliprect.top, cliprect.right, cliprect.bottom);
-    GetRegionData(hrgn, sizeof(RGNDATAHEADER) + sizeof(RECT), rgn_data);
-
-    if (_pD3DDevicesPrimary->GetClipper(&Clipper) != DD_OK) {
-        result = _pD3DDevice->CreateClipper(0, &Clipper, NULL);
-        result = Clipper->SetClipList(rgn_data, 0);
-        result = _pD3DDevicesPrimary->SetClipper(Clipper);
-    } else {
-        result = Clipper->SetClipList(rgn_data, 0 );
-        if (result == DDERR_CLIPPERISUSINGHWND) {
-            result = _pD3DDevicesPrimary->SetClipper(NULL);
-            result = _pD3DDevice->CreateClipper(0, &Clipper, NULL);
-            result = Clipper->SetClipList(rgn_data, 0 ) ;
-            result = _pD3DDevicesPrimary->SetClipper(Clipper);
-        }
-    }
-    free(rgn_data);
-    DeleteObject(hrgn);
-}
-#endif
-
 ////////////////////////////////////////////////////////////////////
 //     Function: DXGraphicsStateGuardian8::get_blend_func
 //       Access: Protected, Static
@@ -3774,20 +3694,6 @@ end_frame() {
   GraphicsStateGuardian::end_frame();
 }
 
-////////////////////////////////////////////////////////////////////
-//     Function: DXGraphicsStateGuardian8::depth_offset_decals
-//       Access: Public, Virtual
-//  Description: Returns true if this GSG can implement decals using a
-//               DepthOffsetAttrib, or false if that is unreliable
-//               and the three-step rendering process should be used
-//               instead.
-////////////////////////////////////////////////////////////////////
-bool DXGraphicsStateGuardian8::
-depth_offset_decals() {
-  // False for now.
-  return false;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: DXGraphicsStateGuardian8::set_draw_buffer
 //       Access: Protected
@@ -4391,13 +4297,11 @@ reset_d3d_device(D3DPRESENT_PARAMETERS *pPresParams, DXScreenData **pScrn) {
 
   ReleaseAllDeviceObjects();
 
-  if(!dx_full_screen) {
-      // for windowed make sure out format matches the desktop fmt, in case the
-      // desktop mode has been changed
+  // for windowed mode make sure our format matches the desktop fmt,
+  // in case the desktop mode has been changed
+  _pScrn->pD3D8->GetAdapterDisplayMode(_pScrn->CardIDNum, &_pScrn->DisplayMode);
+  pPresParams->BackBufferFormat = _pScrn->DisplayMode.Format;
 
-       _pScrn->pD3D8->GetAdapterDisplayMode(_pScrn->CardIDNum, &_pScrn->DisplayMode);
-       pPresParams->BackBufferFormat = _pScrn->DisplayMode.Format;
-  }
   // here we have to look at the _PresReset frame buffer dimension
   // if current window's dimension is bigger than _PresReset 
   // we have to reset the device before creating new swapchain.
@@ -4510,145 +4414,6 @@ CheckCooperativeLevel(bool bDoReactivateWindow) {
   return SUCCEEDED(hr);
 }
 
-/*
-////////////////////////////////////////////////////////////////////
-//     Function: adjust_view_rect
-//       Access:
-//  Description: we receive the new x and y position of the client
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian8::adjust_view_rect(int x, int y) {
-    if (_pScrn->view_rect.left != x || _pScrn->view_rect.top != y) {
-
-        _pScrn->view_rect.right = x + RECT_XSIZE(_pScrn->view_rect);
-        _pScrn->view_rect.left = x;
-        _pScrn->view_rect.bottom = y + RECT_YSIZE(_pScrn->view_rect);
-        _pScrn->view_rect.top = y;
-
-//  set_clipper(clip_rect);
-    }
-}
-*/
-
-#if 0
-
-////////////////////////////////////////////////////////////////////
-//     Function: GLGraphicsStateGuardian::save_mipmap_images
-//       Access: Protected
-//  Description: Saves out each mipmap level of the indicated texture
-//               (which must also be the currently active texture in
-//               the GL state) as a separate image file to disk.
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian8::read_mipmap_images(Texture *tex) {
-   Filename filename = tex->get_name();
-   string name;
-   if (filename.empty()) {
-     static index = 0;
-     name = "texture" + format_string(index);
-     index++;
-   } else {
-     name = filename.get_basename_wo_extension();
-   }
-
-   PixelBuffer *pb = tex->get_ram_image();
-   nassertv(pb != (PixelBuffer *)NULL);
-
-   GLenum external_format = get_external_image_format(pb->get_format());
-   GLenum type = get_image_type(pb->get_image_type());
-
-   int xsize = pb->get_xsize();
-   int ysize = pb->get_ysize();
-
-   // Specify byte-alignment for the pixels on output.
-   glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
-   int mipmap_level = 0;
-   do {
-     xsize = max(xsize, 1);
-     ysize = max(ysize, 1);
-
-     PT(PixelBuffer) mpb =
-       new PixelBuffer(xsize, ysize, pb->get_num_components(),
-                       pb->get_component_width(), pb->get_image_type(),
-                       pb->get_format());
-     glGetTexImage(GL_TEXTURE_2D, mipmap_level, external_format,
-                   type, mpb->_image);
-     Filename mipmap_filename = name + "_" + format_string(mipmap_level) + ".pnm";
-     nout << "Writing mipmap level " << mipmap_level
-          << " (" << xsize << " by " << ysize << ") "
-          << mipmap_filename << "\n";
-     mpb->write(mipmap_filename);
-
-     xsize >>= 1;
-     ysize >>= 1;
-     mipmap_level++;
-   } while (xsize > 0 && ysize > 0);
-}
-#endif
-
-
-#if 0
-//-----------------------------------------------------------------------------
-// Name: SetViewMatrix()
-// Desc: Given an eye point, a lookat point, and an up vector, this
-//       function builds a 4x4 view matrix.
-//-----------------------------------------------------------------------------
-HRESULT SetViewMatrix( D3DMATRIX& mat, D3DXVECTOR3& vFrom, D3DXVECTOR3& vAt,
-                       D3DXVECTOR3& vWorldUp ) {
-    // Get the z basis vector, which points straight ahead. This is the
-    // difference from the eyepoint to the lookat point.
-    D3DXVECTOR3 vView = vAt - vFrom;
-
-    float fLength = Magnitude( vView );
-    if (fLength < 1e-6f)
-        return E_INVALIDARG;
-
-    // Normalize the z basis vector
-    vView /= fLength;
-
-    // Get the dot product, and calculate the projection of the z basis
-    // vector onto the up vector. The projection is the y basis vector.
-    float fDotProduct = DotProduct( vWorldUp, vView );
-
-    D3DXVECTOR3 vUp = vWorldUp - fDotProduct * vView;
-
-    // If this vector has near-zero length because the input specified a
-    // bogus up vector, let's try a default up vector
-    if (1e-6f > ( fLength = Magnitude( vUp ) )) {
-        vUp = D3DXVECTOR3( 0.0f, 1.0f, 0.0f ) - vView.y * vView;
-
-        // If we still have near-zero length, resort to a different axis.
-        if (1e-6f > ( fLength = Magnitude( vUp ) )) {
-            vUp = D3DXVECTOR3( 0.0f, 0.0f, 1.0f ) - vView.z * vView;
-
-            if (1e-6f > ( fLength = Magnitude( vUp ) ))
-                return E_INVALIDARG;
-        }
-    }
-
-    // Normalize the y basis vector
-    vUp /= fLength;
-
-    // The x basis vector is found simply with the cross product of the y
-    // and z basis vectors
-    D3DXVECTOR3 vRight = CrossProduct( vUp, vView );
-
-    // Start building the matrix. The first three rows contains the basis
-    // vectors used to rotate the view to point at the lookat point
-    mat._11 = vRight.x;  mat._12 = vUp.x;  mat._13 = vView.x;  mat._14 = 0.0f;
-    mat._21 = vRight.y;  mat._22 = vUp.y;  mat._23 = vView.y;  mat._24 = 0.0f;
-    mat._31 = vRight.z;  mat._32 = vUp.z;  mat._33 = vView.z;  mat._34 = 0.0f;
-
-    // Do the translation values (rotations are still about the eyepoint)
-    mat._41 = - DotProduct( vFrom, vRight );
-    mat._42 = - DotProduct( vFrom, vUp );
-    mat._43 = - DotProduct( vFrom, vView );
-    mat._44 = 1.0f;
-
-    return S_OK;
-}
-
-#endif
-
 HRESULT CreateDX8Cursor(LPDIRECT3DDEVICE8 pd3dDevice, HCURSOR hCursor,BOOL bAddWatermark) {
 // copied directly from dxsdk SetDeviceCursor
     HRESULT hr = E_FAIL;

panda/src/dxgsg8/dxGraphicsStateGuardian8.h

@@ -135,8 +135,6 @@ public:
 
   virtual bool wants_texcoords(void) const;
 
-  virtual bool depth_offset_decals();
-
   INLINE float compute_distance_to(const LPoint3f &point) const;
   virtual void set_color_clear_value(const Colorf& value);
 

panda/src/dxgsg9/config_dxgsg9.cxx

@@ -37,11 +37,6 @@ NotifyCategoryDef(wdxdisplay9, "windisplay");
 ConfigVariableBool dx_show_transforms
 ("dx-show-transforms", false);
 
-//  Configure this to TRUE if you want DirectX to control the entire screen,
-//  If false, it will just blit into a window.
-ConfigVariableBool dx_full_screen
-("dx-full-screen", false);
-
 //  Configure this true to force the rendering to sync to the video
 //  refresh, or false to let your frame rate go as high as it can,
 //  irrespective of the video refresh.
@@ -52,12 +47,6 @@ ConfigVariableBool dx_sync_video
 ConfigVariableInt dx_multisample_antialiasing_level
 ("dx-multisample-antialiasing-level", 0);
 
-// Configure this true to perform a cull traversal over the geometry
-// by default, false otherwise.  The cull traversal provides support
-// for state-sorting, z-sorting, and binning.
-ConfigVariableBool dx_cull_traversal
-("dx-cull-traversal", true);
-
 // if true, if card only supports per-vertex fog, it will be treated as no-HW fog capability
 ConfigVariableBool dx_no_vertex_fog
 ("dx-no-vertex-fog", false);

panda/src/dxgsg9/config_dxgsg9.h

@@ -29,9 +29,7 @@
 NotifyCategoryDecl(dxgsg9, EXPCL_PANDADX, EXPTP_PANDADX);
 NotifyCategoryDecl(wdxdisplay9, EXPCL_PANDADX, EXPTP_PANDADX);
 
-extern ConfigVariableBool dx_full_screen;
 extern ConfigVariableBool dx_sync_video;
-extern ConfigVariableBool dx_cull_traversal;
 extern ConfigVariableBool dx_no_vertex_fog;
 extern ConfigVariableBool dx_show_cursor_watermark;
 extern ConfigVariableBool dx_full_screen_antialiasing;

panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx

@@ -73,10 +73,6 @@
 // for sprites, 1000 prims, 6 verts/prim, 24 bytes/vert
 const int VERT_BUFFER_SIZE = (32*6*1024L);
 
-// if defined, pandadx only handles 1 panda display region
-// note multiple region code doesnt work now (see prepare_display_region,set_clipper)
-#define NO_MULTIPLE_DISPLAY_REGIONS
-
 TypeHandle DXGraphicsStateGuardian9::_type_handle;
 
 // bit masks used for drawing primitives
@@ -574,33 +570,6 @@ dx_init(void) {
 void DXGraphicsStateGuardian9::
 support_overlay_window(bool flag) {
   // How is this supposed to be done in DX9?
-
-  /*
-  if (_overlay_windows_supported && !flag) {
-    // Disable support for overlay windows.
-    _overlay_windows_supported = false;
-
-    if (dx_full_screen) {
-      _pD3DDevicesPrimary->SetClipper(NULL);
-    }
-
-  } else if (!_overlay_windows_supported && flag) {
-    // Enable support for overlay windows.
-    _overlay_windows_supported = true;
-
-    if (dx_full_screen) {
-      // Create a Clipper object to blt the whole screen.
-      LPDIRECTDRAWCLIPPER Clipper;
-
-      if (_pScrn->pDD->CreateClipper(0, &Clipper, NULL) == DD_OK) {
-        Clipper->SetHWnd(0, _pScrn->hWnd);
-        _pScrn->pddsPrimary->SetClipper(Clipper);
-      }
-      _pScrn->pDD->FlipToGDISurface();
-      Clipper->Release();
-    }
-  }
-  */
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -732,54 +701,6 @@ prepare_lens() {
   return SUCCEEDED(hr);
 }
 
-#ifndef NO_MULTIPLE_DISPLAY_REGIONS
-////////////////////////////////////////////////////////////////////
-//     Function: set_clipper
-//       Access:
-//  Description: Useless in DX at the present time
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian9::set_clipper(RECT cliprect) {
-
-    LPDIRECTDRAWCLIPPER Clipper;
-    HRESULT result;
-
-    // For windowed mode, the clip region is associated with the window,
-    // and DirectX does not allow you to create clip regions.
-    if (dx_full_screen) return;
-
-    /* The cliprect we receive is normalized so that (0,0) means the upper left of
-       the client portion of the window.
-        At least, I think that's true, and the following code assumes that.
-        So we must adjust the clip region by offsetting it to the origin of the
-        view rectangle.
-    */
-    clip_rect = cliprect;       // store the normalized clip rect
-    cliprect.left += _view_rect.left;
-    cliprect.right += _view_rect.left;
-    cliprect.top += _view_rect.top;
-    cliprect.bottom += _view_rect.top;
-    RGNDATA *rgn_data = (RGNDATA *)malloc(sizeof(RGNDATAHEADER) + sizeof(RECT));
-    HRGN hrgn = CreateRectRgn(cliprect.left, cliprect.top, cliprect.right, cliprect.bottom);
-    GetRegionData(hrgn, sizeof(RGNDATAHEADER) + sizeof(RECT), rgn_data);
-
-    if (_pD3DDevicesPrimary->GetClipper(&Clipper) != DD_OK) {
-        result = _pD3DDevice->CreateClipper(0, &Clipper, NULL);
-        result = Clipper->SetClipList(rgn_data, 0);
-        result = _pD3DDevicesPrimary->SetClipper(Clipper);
-    } else {
-        result = Clipper->SetClipList(rgn_data, 0 );
-        if (result == DDERR_CLIPPERISUSINGHWND) {
-            result = _pD3DDevicesPrimary->SetClipper(NULL);
-            result = _pD3DDevice->CreateClipper(0, &Clipper, NULL);
-            result = Clipper->SetClipList(rgn_data, 0 ) ;
-            result = _pD3DDevicesPrimary->SetClipper(Clipper);
-        }
-    }
-    free(rgn_data);
-    DeleteObject(hrgn);
-}
-#endif
-
 ////////////////////////////////////////////////////////////////////
 //     Function: DXGraphicsStateGuardian9::get_blend_func
 //       Access: Protected, Static
@@ -3761,20 +3682,6 @@ end_frame() {
   GraphicsStateGuardian::end_frame();
 }
 
-////////////////////////////////////////////////////////////////////
-//     Function: DXGraphicsStateGuardian9::depth_offset_decals
-//       Access: Public, Virtual
-//  Description: Returns true if this GSG can implement decals using a
-//               DepthOffsetAttrib, or false if that is unreliable
-//               and the three-step rendering process should be used
-//               instead.
-////////////////////////////////////////////////////////////////////
-bool DXGraphicsStateGuardian9::
-depth_offset_decals() {
-  // False for now.
-  return false;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: DXGraphicsStateGuardian9::set_draw_buffer
 //       Access: Protected
@@ -4380,13 +4287,12 @@ reset_d3d_device(D3DPRESENT_PARAMETERS *pPresParams, DXScreenData **pScrn) {
 
   ReleaseAllDeviceObjects();
 
-  if(!dx_full_screen) {
-      // for windowed make sure out format matches the desktop fmt, in case the
-      // desktop mode has been changed
+  // for windowed mode make sure our format matches the desktop fmt,
+  // in case the desktop mode has been changed
+  
+  _pScrn->pD3D9->GetAdapterDisplayMode(_pScrn->CardIDNum, &_pScrn->DisplayMode);
+  pPresParams->BackBufferFormat = _pScrn->DisplayMode.Format;
 
-       _pScrn->pD3D9->GetAdapterDisplayMode(_pScrn->CardIDNum, &_pScrn->DisplayMode);
-       pPresParams->BackBufferFormat = _pScrn->DisplayMode.Format;
-  }
   // here we have to look at the _PresReset frame buffer dimension
   // if current window's dimension is bigger than _PresReset 
   // we have to reset the device before creating new swapchain.
@@ -4499,146 +4405,6 @@ CheckCooperativeLevel(bool bDoReactivateWindow) {
   return SUCCEEDED(hr);
 }
 
-/*
-////////////////////////////////////////////////////////////////////
-//     Function: adjust_view_rect
-//       Access:
-//  Description: we receive the new x and y position of the client
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian9::adjust_view_rect(int x, int y) {
-    if (_pScrn->view_rect.left != x || _pScrn->view_rect.top != y) {
-
-        _pScrn->view_rect.right = x + RECT_XSIZE(_pScrn->view_rect);
-        _pScrn->view_rect.left = x;
-        _pScrn->view_rect.bottom = y + RECT_YSIZE(_pScrn->view_rect);
-        _pScrn->view_rect.top = y;
-
-//  set_clipper(clip_rect);
-    }
-}
-*/
-
-#if 0
-
-////////////////////////////////////////////////////////////////////
-//     Function: GLGraphicsStateGuardian::save_mipmap_images
-//       Access: Protected
-//  Description: Saves out each mipmap level of the indicated texture
-//               (which must also be the currently active texture in
-//               the GL state) as a separate image file to disk.
-////////////////////////////////////////////////////////////////////
-void DXGraphicsStateGuardian9::read_mipmap_images(Texture *tex) {
-   Filename filename = tex->get_name();
-   string name;
-   if (filename.empty()) {
-     static index = 0;
-     name = "texture" + format_string(index);
-     index++;
-   } else {
-     name = filename.get_basename_wo_extension();
-   }
-
-   PixelBuffer *pb = tex->get_ram_image();
-   nassertv(pb != (PixelBuffer *)NULL);
-
-   GLenum external_format = get_external_image_format(pb->get_format());
-   GLenum type = get_image_type(pb->get_image_type());
-
-   int xsize = pb->get_xsize();
-   int ysize = pb->get_ysize();
-
-   // Specify byte-alignment for the pixels on output.
-   glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
-   int mipmap_level = 0;
-   do {
-     xsize = max(xsize, 1);
-     ysize = max(ysize, 1);
-
-     PT(PixelBuffer) mpb =
-       new PixelBuffer(xsize, ysize, pb->get_num_components(),
-                       pb->get_component_width(), pb->get_image_type(),
-                       pb->get_format());
-     glGetTexImage(GL_TEXTURE_2D, mipmap_level, external_format,
-                   type, mpb->_image);
-     Filename mipmap_filename = name + "_" + format_string(mipmap_level) + ".pnm";
-     nout << "Writing mipmap level " << mipmap_level
-          << " (" << xsize << " by " << ysize << ") "
-          << mipmap_filename << "\n";
-     mpb->write(mipmap_filename);
-
-     xsize >>= 1;
-     ysize >>= 1;
-     mipmap_level++;
-   } while (xsize > 0 && ysize > 0);
-}
-#endif
-
-
-#if 0
-//-----------------------------------------------------------------------------
-// Name: SetViewMatrix()
-// Desc: Given an eye point, a lookat point, and an up vector, this
-//       function builds a 4x4 view matrix.
-//-----------------------------------------------------------------------------
-HRESULT SetViewMatrix( D3DMATRIX& mat, D3DXVECTOR3& vFrom, D3DXVECTOR3& vAt,
-                       D3DXVECTOR3& vWorldUp ) {
-    // Get the z basis vector, which points straight ahead. This is the
-    // difference from the eyepoint to the lookat point.
-    D3DXVECTOR3 vView = vAt - vFrom;
-
-    float fLength = Magnitude( vView );
-    if (fLength < 1e-6f)
-        return E_INVALIDARG;
-
-    // Normalize the z basis vector
-    vView /= fLength;
-
-    // Get the dot product, and calculate the projection of the z basis
-    // vector onto the up vector. The projection is the y basis vector.
-    float fDotProduct = DotProduct( vWorldUp, vView );
-
-    D3DXVECTOR3 vUp = vWorldUp - fDotProduct * vView;
-
-    // If this vector has near-zero length because the input specified a
-    // bogus up vector, let's try a default up vector
-    if (1e-6f > ( fLength = Magnitude( vUp ) )) {
-        vUp = D3DXVECTOR3( 0.0f, 1.0f, 0.0f ) - vView.y * vView;
-
-        // If we still have near-zero length, resort to a different axis.
-        if (1e-6f > ( fLength = Magnitude( vUp ) )) {
-            vUp = D3DXVECTOR3( 0.0f, 0.0f, 1.0f ) - vView.z * vView;
-
-            if (1e-6f > ( fLength = Magnitude( vUp ) ))
-                return E_INVALIDARG;
-        }
-    }
-
-    // Normalize the y basis vector
-    vUp /= fLength;
-
-    // The x basis vector is found simply with the cross product of the y
-    // and z basis vectors
-    D3DXVECTOR3 vRight = CrossProduct( vUp, vView );
-
-    // Start building the matrix. The first three rows contains the basis
-    // vectors used to rotate the view to point at the lookat point
-    mat._11 = vRight.x;  mat._12 = vUp.x;  mat._13 = vView.x;  mat._14 = 0.0f;
-    mat._21 = vRight.y;  mat._22 = vUp.y;  mat._23 = vView.y;  mat._24 = 0.0f;
-    mat._31 = vRight.z;  mat._32 = vUp.z;  mat._33 = vView.z;  mat._34 = 0.0f;
-
-    // Do the translation values (rotations are still about the eyepoint)
-    mat._41 = - DotProduct( vFrom, vRight );
-    mat._42 = - DotProduct( vFrom, vUp );
-    mat._43 = - DotProduct( vFrom, vView );
-    mat._44 = 1.0f;
-
-    return S_OK;
-}
-
-#endif
-
-
 HRESULT CreateDX9Cursor(LPDIRECT3DDEVICE9 pd3dDevice, HCURSOR hCursor,BOOL bAddWatermark) {
 // copied directly from dxsdk SetDeviceCursor
     HRESULT hr = E_FAIL;

panda/src/dxgsg9/dxGraphicsStateGuardian9.h

@@ -136,8 +136,6 @@ public:
 
   virtual bool wants_texcoords(void) const;
 
-  virtual bool depth_offset_decals();
-
   INLINE float compute_distance_to(const LPoint3f &point) const;
   virtual void set_color_clear_value(const Colorf& value);
 

panda/src/glstuff/glGraphicsStateGuardian_src.cxx

@@ -414,19 +414,14 @@ reset() {
 
   report_my_gl_errors();
 
-  _buffer_mask = 0;
-
-  // All GL implementations have the following buffers. (?)
+  // All GL implementations have the following buffers.
   _buffer_mask = (RenderBuffer::T_color |
                   RenderBuffer::T_depth |
                   RenderBuffer::T_stencil |
                   RenderBuffer::T_accum);
 
-  // Check to see if we have double-buffering.
-
-  // This isn't completely right.  Instead of just clearing this bit
-  // and disallowing writes to T_back, we need to set T_front on
-  // operations that might have had T_back set otherwise.
+  // If we don't have double-buffering, don't attempt to write to the
+  // back buffer.
   GLboolean has_back;
   GLP(GetBooleanv)(GL_DOUBLEBUFFER, &has_back);
   if (!has_back) {
@@ -2831,19 +2826,6 @@ wants_texcoords() const {
   return true;
 }
 
-////////////////////////////////////////////////////////////////////
-//     Function: CLP(GraphicsStateGuardian)::depth_offset_decals
-//       Access: Public, Virtual
-//  Description: Returns true if this GSG can implement decals using a
-//               DepthOffsetAttrib, or false if that is unreliable
-//               and the three-step rendering process should be used
-//               instead.
-////////////////////////////////////////////////////////////////////
-bool CLP(GraphicsStateGuardian)::
-depth_offset_decals() {
-  return CLP(depth_offset_decals);
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: CLP(GraphicsStateGuardian)::compute_distance_to
 //       Access: Public, Virtual

panda/src/glstuff/glGraphicsStateGuardian_src.h

@@ -132,8 +132,6 @@ public:
 
   virtual bool wants_texcoords(void) const;
 
-  virtual bool depth_offset_decals();
-
   virtual float compute_distance_to(const LPoint3f &point) const;
 
   void print_gfx_visual();

panda/src/glstuff/glmisc_src.cxx

@@ -52,11 +52,6 @@ bool CLP(save_mipmaps) = CONFIGOBJ.GetBool("gl-save-mipmaps", false);
 // variable.
 bool CLP(auto_normalize_lighting) = CONFIGOBJ.GetBool("auto-normalize-lighting", true);
 
-// Configure this true to try to implement decals using a
-// DepthOffsetAttrib, false to do them with the more reliable 3-pass
-// rendering method instead.
-bool CLP(depth_offset_decals) = CONFIGOBJ.GetBool("depth-offset-decals", false);
-
 // Configure this false if your GL's implementation of GLP(ColorMask)()
 // is broken (some are).  This will force the use of a (presumably)
 // more expensive blending operation instead.

panda/src/glstuff/glmisc_src.h

@@ -28,7 +28,6 @@ extern bool CLP(force_mipmaps);
 extern bool CLP(show_mipmaps);
 extern bool CLP(save_mipmaps);
 extern bool CLP(auto_normalize_lighting);
-extern bool CLP(depth_offset_decals);
 extern bool CLP(color_mask);
 
 extern EXPCL_GL void CLP(init_classes)();

panda/src/wgldisplay/wglGraphicsPipe.cxx

@@ -100,15 +100,10 @@ make_gsg(const FrameBufferProperties &properties,
     DCAST_INTO_R(share_gsg, share_with, NULL);
   }
 
-  // Make a copy of the supplied properties so we can possibly modify
-  // them to suit our available properties.
-  FrameBufferProperties new_properties = properties;
-
   // We need a DC to examine the available pixel formats.  We'll use
   // the screen DC.
   HDC hdc = GetDC(NULL);
-  int pfnum = choose_pfnum(new_properties, hdc);
-  ReleaseDC(NULL, hdc);
+  int pfnum = choose_pfnum(properties, hdc);
 
   if (gl_force_pixfmt != 0) {
     wgldisplay_cat.info()
@@ -117,13 +112,18 @@ make_gsg(const FrameBufferProperties &properties,
     pfnum = gl_force_pixfmt;
   }
 
+  FrameBufferProperties new_properties;
+  get_properties(new_properties, hdc, pfnum);
+  ReleaseDC(NULL, hdc);
+
   if (wgldisplay_cat.is_debug()) {
     wgldisplay_cat.debug()
-      << "config() - picking pixfmt #" << pfnum <<endl;
+      << "Picking pixfmt #" << pfnum << " = " 
+      << new_properties << "\n";
   }
 
   PT(wglGraphicsStateGuardian) gsg = 
-    new wglGraphicsStateGuardian(properties, share_gsg, pfnum);
+    new wglGraphicsStateGuardian(new_properties, share_gsg, pfnum);
 
   // Ideally, we should be able to detect whether the share_gsg will
   // be successful, and return NULL if it won't work.  But we can't do
@@ -167,22 +167,24 @@ make_buffer(GraphicsStateGuardian *gsg, const string &name,
 //               the actual visual chosen.
 ////////////////////////////////////////////////////////////////////
 int wglGraphicsPipe::
-choose_pfnum(FrameBufferProperties &properties, HDC hdc) {
+choose_pfnum(const FrameBufferProperties &properties, HDC hdc) {
   int pfnum;
 
-  if (force_software_renderer) {
-    pfnum = find_pixfmtnum(properties, hdc, false);
-    
-    if (pfnum == 0) {
-      wgldisplay_cat.error()
-        << "Couldn't find compatible software-renderer OpenGL pixfmt, check your window properties!\n";
-      return 0;
-    }
+  int mode = properties.get_frame_buffer_mode();
+  bool hardware = ((mode & FrameBufferProperties::FM_hardware) != 0);
+  bool software = ((mode & FrameBufferProperties::FM_software) != 0);
 
-  } else {
+  // If the user specified neither hardware nor software frame buffer,
+  // he gets either one.
+  if (!hardware && !software) {
+    hardware = true;
+    software = true;
+  }
+
+  if (hardware) {
     pfnum = find_pixfmtnum(properties, hdc, true);
     if (pfnum == 0) {
-      if (allow_software_renderer) {
+      if (software) {
         pfnum = find_pixfmtnum(properties, hdc, false);
         if (pfnum == 0) {
           wgldisplay_cat.error()
@@ -204,6 +206,15 @@ choose_pfnum(FrameBufferProperties &properties, HDC hdc) {
         return 0;
       }
     }
+
+  } else {
+    pfnum = find_pixfmtnum(properties, hdc, false);
+    
+    if (pfnum == 0) {
+      wgldisplay_cat.error()
+        << "Couldn't find compatible software-renderer OpenGL pixfmt, check your window properties!\n";
+      return 0;
+    }
   }
   
   return pfnum;
@@ -218,11 +229,13 @@ choose_pfnum(FrameBufferProperties &properties, HDC hdc) {
 //               not be found.
 ////////////////////////////////////////////////////////////////////
 int wglGraphicsPipe::
-find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
+find_pixfmtnum(const FrameBufferProperties &properties, HDC hdc,
                bool bLookforHW) {
   int frame_buffer_mode = properties.get_frame_buffer_mode();
-  bool want_depth_bits = properties.has_depth_bits();
-  bool want_color_bits = properties.has_color_bits();
+  int depth_bits = properties.get_depth_bits();
+  int color_bits = properties.get_color_bits();
+  int alpha_bits = properties.get_alpha_bits();
+  int stencil_bits = properties.get_stencil_bits();
   OGLDriverType drvtype;
 
   PIXELFORMATDESCRIPTOR pfd;
@@ -313,19 +326,19 @@ find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
     }
 
     if ((frame_buffer_mode & FrameBufferProperties::FM_alpha) != 0 && 
-        (pfd.cAlphaBits==0)) {
+        (pfd.cAlphaBits < alpha_bits)) {
       wgldisplay_cat.debug() 
         << "  rejecting.\n";
       continue;
     }
     if ((frame_buffer_mode & FrameBufferProperties::FM_depth) != 0 && 
-        (pfd.cDepthBits==0)) {
+        (pfd.cDepthBits < depth_bits)) {
       wgldisplay_cat.debug() 
         << "  rejecting.\n";
       continue;
     }
     if ((frame_buffer_mode & FrameBufferProperties::FM_stencil) != 0 && 
-        (pfd.cStencilBits==0)) {
+        (pfd.cStencilBits < stencil_bits)) {
       wgldisplay_cat.debug() 
         << "  rejecting.\n";
       continue;
@@ -338,18 +351,9 @@ find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
       continue;
     }
 
-    // now we ignore the specified want_color_bits for windowed mode
-    // instead we use the current screen depth
-
-    // drose: Does this help anything?  Checking the current screen
-    // depth doesn't make sense if we are rendering offscreen or if we
-    // are planning to open a fullscreen window, and it seems like it
-    // shouldn't be necessary anyway.
-    if ((pfd.cColorBits!=cur_bpp) && 
-        (!((cur_bpp==16) && (pfd.cColorBits==15))) && 
-        (!((cur_bpp==32) && (pfd.cColorBits==24)))) {
+    if (pfd.cColorBits < color_bits) {
       wgldisplay_cat.debug() 
-        << "  rejecting because it doesn't match the screen depth.\n";
+        << "  rejecting.\n";
       continue;
     }
 
@@ -393,6 +397,57 @@ find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
   return found_pfnum;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: wglGraphicsPipe::get_properties
+//       Access: Private, Static
+//  Description: Gets the FrameBufferProperties to match the
+//               indicated pixel format descriptor.
+////////////////////////////////////////////////////////////////////
+void wglGraphicsPipe::
+get_properties(FrameBufferProperties &properties, HDC hdc,
+               int pfnum) {
+  PIXELFORMATDESCRIPTOR pfd;
+  ZeroMemory(&pfd,sizeof(PIXELFORMATDESCRIPTOR));
+  pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
+  pfd.nVersion = 1;
+
+  DescribePixelFormat(hdc, pfnum, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+
+  properties.clear();
+
+  int mode = 0;
+  if (pfd.dwFlags & PFD_DOUBLEBUFFER) {
+    mode |= FrameBufferProperties::FM_double_buffer;
+  }
+  if (pfd.dwFlags & PFD_STEREO) {
+    mode |= FrameBufferProperties::FM_stereo;
+  }
+  if (pfd.dwFlags & PFD_GENERIC_FORMAT) {
+    mode |= FrameBufferProperties::FM_software;
+  } else {
+    mode |= FrameBufferProperties::FM_hardware;
+  }
+
+  if (pfd.cColorBits != 0) {
+    mode |= FrameBufferProperties::FM_rgb;
+    properties.set_color_bits(pfd.cColorBits);
+  }
+  if (pfd.cAlphaBits != 0) {
+    mode |= FrameBufferProperties::FM_alpha;
+    properties.set_alpha_bits(pfd.cAlphaBits);
+  }
+  if (pfd.cDepthBits != 0) {
+    mode |= FrameBufferProperties::FM_depth;
+    properties.set_depth_bits(pfd.cDepthBits);
+  }
+  if (pfd.cStencilBits != 0) {
+    mode |= FrameBufferProperties::FM_stencil;
+    properties.set_stencil_bits(pfd.cStencilBits);
+  }
+
+  properties.set_frame_buffer_mode(mode);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: wglGraphicsPipe::format_pfd_flags
 //       Access: Private, Static

panda/src/wgldisplay/wglGraphicsPipe.h

@@ -45,9 +45,11 @@ protected:
                                          const string &name,
                                          int x_size, int y_size, bool want_texture);
 private:
-  static int choose_pfnum(FrameBufferProperties &properties, HDC hdc);
-  static int find_pixfmtnum(FrameBufferProperties &properties, HDC hdc,
+  static int choose_pfnum(const FrameBufferProperties &properties, HDC hdc);
+  static int find_pixfmtnum(const FrameBufferProperties &properties, HDC hdc,
                             bool bLookforHW);
+  static void get_properties(FrameBufferProperties &properties, HDC hdc,
+                             int pfnum);
   static string format_pfd_flags(DWORD pfd_flags);
 
 public:

panda/src/windisplay/config_windisplay.cxx

@@ -72,11 +72,6 @@ ConfigVariableBool swapbuffer_framelock
 ("swapbuffer-framelock", false,
  PRC_DESC("Set this true to enable HW swapbuffer frame-lock on 3dlabs cards"));
 
-ConfigVariableBool force_software_renderer
-("force-software-renderer", false);
-ConfigVariableBool allow_software_renderer
-("allow-software-renderer", false);
-
 ////////////////////////////////////////////////////////////////////
 //     Function: init_libwindisplay
 //  Description: Initializes the library.  This must be called at

panda/src/windisplay/config_windisplay.h

@@ -35,8 +35,6 @@ extern ConfigVariableBool ime_hide;
 
 extern EXPCL_PANDAWIN ConfigVariableBool sync_video;
 extern EXPCL_PANDAWIN ConfigVariableBool swapbuffer_framelock;
-extern EXPCL_PANDAWIN ConfigVariableBool force_software_renderer;
-extern EXPCL_PANDAWIN ConfigVariableBool allow_software_renderer;
 
 extern EXPCL_PANDAWIN void init_libwindisplay();